Determine the probable formula of an acid salt which is an oxidising agent from the following data.Its equivalent weight as an acid is 390 and as an oxidising agent is 32.5. It contains 10% of potassium and 65% of iodine.

Determine the probable formula of an acid salt which is an oxidising a

1.	Determine the probable formula of an acid salt which is an oxidising agent from the following data.Its equivalent weight as an acid is 390 and as an oxidising agent is 32.5. It contains 10% of potassium and 65% of iodine.
Answer» Solution :The acid salt has an equivalent weight `=390` `10%` of this is `39g-=1` mole of potassium. Hence the simplest formula contains one K and one H. Also 390 g Contains `65%` of iodine i.e., `(390xx65)/(100)g=253.5g` Since the atomic weight of iodine is 127, the simplest formula is `KHI_(2)O_(x).nH_(2)O`. Further. `390 g` correspond to `(390)/(32.5)=12`, equivalents of oxidising AGENT since `IO_(3)^(ɵ)+6H^(o+)+6e^(-)I^(ɵ)+3H_(2)O`, one `IO_(3)^(ɵ)-=6` equivalents The formula is `KHI_(2)O_(6).nH_(2)O` molar mass `=[390+18n]=390impliesn=0` Therefore, the probeble formula`=KH(IO_(3))_(2)`